Toyota Corolla (E120) 2002–2008 Repair Manual / Diagnostics / Cruise control system / Idle signal circuit / Inspection procedure
Toyota Corolla (E120): Inspection procedure
1 Inspect terminal voltage(idl)
- Remove the cruise control ecu assy with connector still connected.
- disconnect the ecm connector.
- turn the ignition switch to on.
- measure voltage between terminal 13 (idl) of cruise control
ecu assy connector and body ground when the
throttle valve is fully closed and fully opened.
Ok:
2 Check harness and connector(between cruise control ecu assy and ecm)
- Check for open and short circuit in harness and connector between cruise control ecu assy and ecm
Check and replace cruise control ecu assy
Other materials:
Pre–check
1. Diagnosis check
Starting diagnosis mode (service check mode)
turn off the audio system and turn the ig switch to
acc. While pressing the preset switches ”1” and ”6”
at the same time, press ”cd” 3 times.
Reference:
beep sound is given 3 times and the sys ...
Inspection procedure
Hint:
read freeze frame data using the hand-held tester or the obd ii scan tool.
Freeze frame data records the
engine conditions when a malfunction is detected. When troubleshooting, it is
useful for determining whether
the vehicle was running or stopped, the engine was warmed up or not, the ...
Inspection procedure
1 Check courtesy lamp switch
Check the courtesy switch, as shown in the illustration
and table.
Standard:
2 Check wire harness (integration relay door courtesy sw)
Disconnect the integration relay and door courtesy connectors.
check the continuity between th ...